Oh yeah I'm also adding another one.
Live2D animation.....
I like how the animation is used in most mobile games I play but 1) The process looks so confusing 2) Most of my characters' details looks quite intricate to separate all the assets for a Live2D and can I have the patience for that ahgfdaghfd
The thing I want to learn the most is webcomic though. I tried to read every panelling and typesetting tips and guides to backgrounds or planning and whatnot but I'm 100% sure I'll forget all of them once I actually start on the thing orz